The heat energy that must be supplied to 14 gram of nitrogen at room temperature to raise its temperature by 48 at constant pressure is (Molecular weight of nitrogen = 28, R = gas constant, Cp = 7/2R for diatomic gas) (a) 76 R (b) 84 R (c) 90 R (d) 96 R

Answer: (b). n = 14/28 = 0.5 mol, Cp = 7/2R. Q = nCpΔ T = 0.5 × 7/2R × 48 Q = 84R, so the answer is (b) 84 R.

The heat energy that must be supplied to 14 gram of nitrogen at room… | MHT CET 2025 (26 Apr, Shift 1)

Q70MHT CET 2025 · 26 APR · SHIFT 1Medium

Thermodynamic Processes

The heat energy that must be supplied to 14 gram of nitrogen at room temperature to raise its temperature by $48^\circ\text{C}$ at constant pressure is (Molecular weight of nitrogen $= 28, R =$ gas constant, $C_p = \frac{7}{2}R$ for diatomic gas)

Show answer and solution

Answer: (b)

$n = \dfrac{14}{28} = 0.5$ mol, $C_p = \dfrac{7}{2}R$ .
$Q = nC_p\Delta T = 0.5 \times \dfrac{7}{2}R \times 48$
$Q = 84R$ , so the answer is (b) 84 R.

Report a mistake

More questions on Thermodynamic Processes

A sample of an ideal gas (γ = 5/3) is heated at constant pressure. If 100 J of heat is…MHT CET 2025 (25 Apr, Shift 2)
In an isobaric process of an ideal gas, the ratio of heat supplied and work done by the…MHT CET 2025 (22 Apr, Shift 2)
When an ideal gas (γ = 5/3) is heated under constant pressure, then what percentage of…MHT CET 2025 (22 Apr, Shift 1)
Two cylinders A and B fitted with pistons contain equal amount of an ideal rigid diatomic…MHT CET 2025 (21 Apr, Shift 1)
The change in the internal energy of the mass of gas, when the volume changes from V to 2…MHT CET 2025 (20 Apr, Shift 2)
A monoatomic ideal gas is heated at constant pressure. The percentage of total heat used…MHT CET 2025 (19 Apr, Shift 2)
An ideal gas goes from an initial state to final state. During the process, the pressure…JEE Main 2025 (24 Jan, Shift 1)
The temperature of 1 mole of an ideal monoatomic gas is increased by 50 at constant…JEE Main 2025 (24 Jan, Shift 1)

Thermodynamic Processes question from MHT CET 2025 (26 Apr, Shift 1)

More questions on Thermodynamic Processes