State the law of conservation of mass and energy.

State the law of conservation of mass and energy.
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1 Answer

Answer :

Mass and energy are interchangeable. When mass is lost there is a substantial gain in energy and when energy is lost there is a increase in mass. 
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Related questions

How are the law of conservation of energy and the law of conservation of mass similar?

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Which of the following laws validates the statement that matter can neither be created nor destroyed? (1) Law of conservation of energy (2) Le Chatelier's Principle (3) Law of conservation of mass (4) Law of osmosis

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The Navier-Stokes equation deals with the law of conservation of (A) Mass (B) Energy (C) Both (A) & (B) (D) Momentum

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Last Answer : (D) Momentum

Euler's equation of motion is a statement expressing (A) Conservation of mass (B) Conservation of energy (C) Newton's first law of motion (D) Newton's second law of motion

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The first law of thermodynamics is a restatement of the law of conservation of (A) Mass (B) Energy (C) Momentum (D) None of these

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The 1st Law of Thermodynamics on what principle?  a. Conservation of Energy  b. Conservation of mass  c. Enthalpy  d. Isometric

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The law of conservation of mass states that ______.  a. mass is indestructible  b. mass is destructible  c. mass is indestructible  d. none of the above

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Chemical equation is balanced according to the law of [AMU 1984] (A) Multiple proportion (B) Reciprocal proportion (C) Conservation of mass (D) Definite proportions

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A sample of pure carbon dioxide, irrespective of its source contains 27.27% carbon and 72.73% oxygen. The data supports [AIIMS 1992] (A) Law of constant composition (B) Law of conservation of mass (C) Law of reciprocal proportions (D) Law of multiple proportions

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Which of the following is the best example of law of conservation of mass? [NCERT 1975] (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2. (B) When 12 g of carbon is heated in a vacuum there is no change in mass. (C) A sample of air increases in volume when heated at constant pressure but its mass remains unaltered. (D) The weight of a piece of platinum is the same before and after heating in air.

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Last Answer : (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2.

Which of the following scientists first stated the law of conservation of mass? Was it: w) Lavoisier x) Dalton y) Proust z) Boyle

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Last Answer : ANSWER: W -- LAVOISIER

Purity of a metal can be determined with the help of (1) Pascal’s law (2) Boyle’s law (3) Archimedes principle (4) Conservation of mass principle

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Description : A rocket works on the principle of conservation of (a) Mass (b) Energy (c) Linear momentum (d) Angular momentum

Last Answer : Ans:(c)

The working of a rocket is based on the principle of: (1) Conservation of momentum (2) Conservation of mass (3) Conservation of energy (4) Conservation of angular momentum

Description : The working of a rocket is based on the principle of: (1) Conservation of momentum (2) Conservation of mass (3) Conservation of energy (4) Conservation of angular momentum

Last Answer : (1) Conservation of momentum Explanation: The operation of a rocket illustrates the conservation of momentum. Just before launching, the momentum of the rocket is zero. When the rocket is fired ... rocket acquires a momentum of equal magnitude in opposite direction. Thus the rocket moves upwards.

A jet engine works, on the principle of conservation of - (1) linear momentum (2) angular momentum (3) energy (4) mass

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Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

Description : Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

Last Answer : (3) Conservation of momentum Explanation: The motion of a rocket is an application of Newton's third law of motion and law of conservation of linear momentum. The operation of a rocket illustrates the ... rocket is fired, it forces a jet of hot gases with a high velocity through the nozzle.

A rocket works on the principle of conservation of ______. (1) mass (2) linear momentum (3) energy (4) angular momentum

Description : A rocket works on the principle of conservation of ______. (1) mass (2) linear momentum (3) energy (4) angular momentum

Last Answer : (2) linear momentum Explanation: A rocket works by expelling gases from one end at a very high velocity. The escaping gases have a very high speed and this with their mass translates to a very large momentum.

The continuity equation of fluid mechanics utilises the principle of conservation of (A) Momentum (B) Mass (C) Energy (D) Both (B) & (C)

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Last Answer : (B) Mass

According to Bernoulli's equation for steady ideal fluid flow (A) Principle of conservation of mass holds (B) Velocity and pressure are inversely proportional (C) Total energy is constant throughout (D) The energy is constant along a streamline but may vary across streamlines

Description : According to Bernoulli's equation for steady ideal fluid flow (A) Principle of conservation of mass holds (B) Velocity and pressure are inversely proportional (C) Total energy is constant throughout (D) The energy is constant along a streamline but may vary across streamlines

Last Answer : Answer: Option D

Energy can neither created nor destroyed. It can only change forms.  a. Conservation of Mass Principle  b. Conservation of Energy Principle  c. Conservation of Momentum Principle  d. Conservation of Heat Principle

Description : Energy can neither created nor destroyed. It can only change forms.  a. Conservation of Mass Principle  b. Conservation of Energy Principle  c. Conservation of Momentum Principle  d. Conservation of Heat Principle

Last Answer : Conservation of Energy Principle