0

Guest

Courses New

A metal chloride dissolves endothermally and when 7.45g of its anhydrous form are dissolved in excess of water, the amount of heat absorbed is X kJ. Calculate the enthalpy of solution if molar mass of chlorine is 74.5

A metal chloride dissolves endothermally and when 7.45g of its anhydrous form are dissolved in excess of water, the amount of heat absorbed is X kJ. Calculate the enthalpy of solution if molar mass of chlorine is 74.5

Grade:12

2 Answers

Shobhit Varshney IIT Roorkee
askIITians Faculty 33 Points
9 years ago
Let metal chloride is MCl
If here molar mass of metal chloride is 74.5g/mol
so moles of metal chloride=7.45/74.5=0.1mol
as enthalpy of solution is given as heat absorbed/released per mole
so heat of solution(per mole)=x*10 kJ=10X kJ
shivi
11 Points
7 years ago
Heat absorbed, q = −cm∆T where, c= specific heat capacity of water, 4.18 kJ kg−1 oC−1 m = mass of water in kg, ∆T=change in temperature in oC q = X kJ (given) Number of moles of the metal chloride = 7.4574.5mol= 0.1 molNow, the enthalpy of solution is heat absorbed per mole, i.e, ∆H = qn= X0.1= 10X kJ mole

Think You Can Provide A Better Answer ?

Other Related Questions on Thermal Physics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More