When 1942 J of heat energy is added to 47.4 g of ethanol, #C_2H_6O#, the temperature increases by 16.7 °C. What is the molar heat capacity of #C_2H_6O#?

Answer 1

#112 J/(mol °C)#

ethanol has MM=46,06 g/mol, so you have #n= (47,4g)/ (46,6 g/(mol)) = 1,030 mol # of ethanol. Since Q = n Cm (Tf-Ti) , the molar heat capacity of ethanol is # Cm = Q/ (n(Tf-Ti)) = (1942 J)/ (1,030 mol 16,7 °C) = 112 J/(mol °C)#

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Serenity Allen

The molar heat capacity of C₂H₆O is 2.81 J/(g°C).

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Trending questions

Not the question you need?

HIX Tutor

Solve ANY homework problem with a smart AI

98% accuracy study help
Covers math, physics, chemistry, biology, and more
Step-by-step, in-depth guides
Readily available 24/7