The amount of heat that must be supplied to 35 g of oxygen at room temperature to raise its temperature by 80 °C at constant volume is (molecular mass…

Question

The amount of heat that must be supplied to 35 g of oxygen at room temperature to raise its temperature by 80 °C at constant volume is (molecular mass of oxygen is 32 and R=8.3 J mol^(-1) K^(-1))

MARKS Content Team · Accepted Answer

Correct answer: (C) 1.81 kJ. The expression for the heat supplied at constant volume, Q=nC_vdT Q=m/MC_(ν)dT For oxygen, Specific heat at constant volume C_v=f/2RT=5/2RT (f=Degree of freedom) Substitute the given values in the above equation. Q=35/325/2R 80 Q=35/325/2×8.31 80 Q=1817.812 J Q≈1.81 kJ

The amount of heat that must be supplied to $35 g$ of oxygen at room temperature to raise its temperature by $80 ° C$ at constant volume is (molecular mass of oxygen is $32$ and $R = 8.3 J {mol}^{- 1} K^{- 1}$ )

Solution

Relevant Questions

The amount of heat that must be supplied to 35 g of oxygen at room temperature to raise its temperature by 80 °C at constant volume is (molecular mass of oxygen is 32 and R=8.3 J mol-1 K-1)

Solution

Relevant Questions

The amount of heat that must be supplied to $35 g$ of oxygen at room temperature to raise its temperature by $80 ° C$ at constant volume is (molecular mass of oxygen is $32$ and $R = 8.3 J {mol}^{- 1} K^{- 1}$ )