Let Q and W denote the amount of heat given to an ideal gas and the work done by it in an isothermal process.
(a) Q = 0.
(b) W = 0.
(c)Q ≠ W.
(d) Q = W
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In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is the change in internal energy for the process?
According to the first law of thermodynamics, ∆U = q + W (i) Where, ∆U = change in internal energy for a process q = heat W = work Given, q = + 701 J (Since...
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In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is the change in the internal energy of the process?
Internal energy of the system increases by 307 J.
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Three coins are tossed once. Let A denote the event ‘three heads show”, B denote the event “two heads and one tail show”
When three coins are tossed, the sample space is given by S = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT} Accordingly, A = {HHH} B = {HHT, HTH, THH} C = {TTT} D = {HHH,...
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If heat is supplied to an ideal gas in an isothermal process,
(b) the gas will do positive work
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The internal energy of an ideal gas decreases by the same amount as the work done by the system.
The correct answer is (a) (d) (a) The process must be adiabatic. (d) The temperature must decrease.
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Work done by a sample of an ideal gas in a process A is double the work done in another process B.
The correct answer is (c) CA > CB
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Let Cv and Cp denote the molar heat capacities of an ideal gas at constant volume and constant pressure respectively.
The correct answer is (c) Cp - Cv
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Let Q and W denote the amount of heat given to an ideal gas and the work done by it in an adiabatic process.
The correct answer is (a) (d) (a) Q = 0. (d) Q≠W.
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In a process, 802 J of heat is absorbed by a system and 294 J of work is done by the system. What is the change in internal energy for the process?
ΔU = q + w ΔU = 802 + (-294) =508J
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Express the change in internal energy of a system when:- ‘w’ amount of work is done by the system and ‘q’ amount of heat is supplied to the system.
Δ U = q – w, closed system
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