First Law of Thermodynamics

JEE Main Physics · Thermodynamics · 14 questions, latest first

• One mole of diatomic gas having rotational modes only is kept in a cylinder with a piston system. The cross-section area of the…20268 April, Shift 2 · Q35
• Density of water at 4^° C and 20^° C are 1000 kg / m^3 and 998 kg / m^3 respectively. The increase in internal energy of 4 kg of…202624 January, Shift 1 · Q32
• The internal energy of a monoatomic gas is 3 nRT. One mole of helium is kept in a cylinder having internal cross section area of…202623 January, Shift 2 · Q34
• Match List - I with List - II. Choose the correct answer from the options given below:20257 April, Shift 2 · Q34
• Match List - I with List - II. Δ Q= Heat supplied Δ W= Work done by the system Δ U= Change in internal energy P = Pressure of the…20254 April, Shift 2 · Q33
• A piston of mass M is hung from a massless spring whose restoring force law goes as F=-kx^3, where k is the spring constant of…20253 April, Shift 1 · Q35
• Match the LIST-I with LIST-II Choose the correct answer from the options given below:202523 January, Shift 1 · Q33
• A total of 48 J heat is given to one mole of helium kept in a cylinder. The temperature of helium increases by 2^° C. The work…20246 April, Shift 2 · Q39
• 1 kg of water at 100^° C is converted into steam at 100^° C by boiling at atmospheric pressure. The volume of water changes from…202311 April, Shift 1 · Q44
• A source supplies heat to a system at the rate of 1000 W. If the system performs work at a rate of 200 W. The rate at which…20236 April, Shift 1 · Q44
• The pressure of a gas changes linearly with volume from A to B as shown in figure. If no heat is supplied to or extracted from…202331 January, Shift 1 · Q10
• Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: If d Q and d W…202329 January, Shift 1 · Q14
• Match List I with List II Choose the correct answer from the options given below:202325 January, Shift 2 · Q2
• 1 g of a liquid is converted to vapour at 3 × 10^5 Pa pressure. If 10 % of the heat supplied is used for increasing the volume by…202324 January, Shift 1 · Q8