Friday
March 24, 2017

Post a New Question

Posted by on Monday, January 24, 2011 at 7:22pm.

Calculate the joules of energy involved when 11 grams of water at 10.0 degrees Celsius cools and then freezes at 0.0 degrees Celsius.

How many kilocalories are required to raise the temperature of 305 gtams silver from 30 degrees Celsius to 70 degrees Celsius? (spec. heat of Ag =0.0g cal/g degrees Celsius)

Thanks =)

  • Chemistry - , Monday, January 24, 2011 at 11:54pm

    q1 = heat released to cool water from 10 C to zero C.
    q1 = mass water x specific heat water x (Tfinal-Tinitial).

    q2 = heat released to freeze liquid water at zero C to solid ice at zero C.
    qw2 = mass water x heat fusion.

    Total q = q1 + q2

  • Chemistry - , Wednesday, February 11, 2015 at 7:14pm

    fmskmgsmgfms;lk

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question