A 1.3-kg block of ice is initially at a temperature of -4.0 C. Part A Part compl

ID: 1578561 • Letter: A

Question

A 1.3-kg block of ice is initially at a temperature of -4.0 C.

Part A

Part complete

If 2.6×105 J of heat are added to the ice, what is the final temperature of the system?

Express your answer using one significant figure.

Part B

Part complete

Find the amount of ice, if any, that remains.

Express your answser using one significant figure.

A 1.3-kg block of ice is initially at a temperature of -4.0 C.

Part A

Part complete

If 2.6×105 J of heat are added to the ice, what is the final temperature of the system?

Express your answer using one significant figure.

Part B

Part complete

Find the amount of ice, if any, that remains.

Express your answser using one significant figure.

(A) to raise the temp,

Q = m C deltaT

Q1 = (1.3)(2108) (0 - (-4)) = 10961.6 J

energy left to melt the ice = (2.6 x 10^5) - Q1

= 2.49 x 10^5 J

to melt,

Q = m Lf

2.49 x 10^5 = m (334 x 10^3)

m = 0.746 kg

hence final temp = 0

(B) ice remaining = 1.3 - 0.746 = 0.554 kg

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