Elow of heat energy between two bodies or systems requires …………………….
A) pressure difference
B) potential difference
C) temperature difference
D) all of these
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Two bodies undergo one-dimensional, perfectly inelastic, head-on collision. Derive an expression for the loss in the kinetic energy.
USE 1) IF ELASTIC COLLISION THEN ENERGY CONSERVATION K.E.(INITIAL)=K.E.(FINAL) 2) IN INELASTIC USE MOMENTUM CONSERVATION
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Green computing is important for all classes of systems, ranging from ______________ systems to largescale ______________ centers.
(B) Handheld (D) Data
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By which mechanism heat is lost by hot bodies?
Hot bodies lose the heat in the form of radiation.
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Heat energy will be transferred, when two bodies are placed in thermal contact which are at different temperatures
B) from a body at higher temperature to lower temperature
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Net heat lost by the hot bodies = Net heat gained by the cold bodies
C) Principle of method of mixtures
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Calculate the amount of heat energy to be supplied to convert 2 kg of ice at 0 °C completely into water at 0 °C if latent heat of fusion
Mass (m) = 2 kg = 2 × 103 g. latent heat of fusion for ice (L) = 80 cal/g. To find: Heat energy (Q) Formula: Q = mL From formula, Q = 2 × 103 ×...
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The latent heat of vapourization of liquid of “m”gm when the heat energy of “Q” calories is supplied to change its state from liquid to gas is ………………
Q = mL so, L = Q/m. Hence, the correct option is (B) Q/m
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The latent heat of vapourization of liquid of “m”gm when the heat energy of “Q” calories is supplied to change its state from liquid to gas is ………………
2 Answers
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Heat is transferred between two (or more) systems or a system and its surrounding by virtue of (A) temperature difference.
Correct option is: (A) temperature difference.
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A. In all the body systems, the brain is so important. R. Brain co-ordinates all the systems.
A) A and R both are correct. R is the correct explanation to A .
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