The molar heat capacity of water at constant, pressure, C , is 75 ~J ~K ⁻¹ ~mol ⁻¹ . When 1.0 kJ of heat is supplied to 100 ~g of water which is free to expand, the increase in temperature of water is:

Step-by-step solution

Molar heat capacity =75 ~J ~K ⁻¹ ~mol ⁻¹ aligned & 18 ~g of water =1 mole =75 ~J ~K ⁻¹ & ~mol ⁻¹ & 1 ~g of water = 75 18 JK ⁻¹ & Q = m.c. t aligned aligned 1000 & =100 75 18 t t & = 10 18 75 =2.4 ~K aligned