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Q 1/3
Score 0
Heated bricks or blocks of iron wer used long ago to warm beds. A 1490 g block of iron heated to 155 C would release how many joules of heat as it is cooled to 22 C? the specific heat of iron is 0.4494 J/g C. (number only, answer in kJ with correct sig figs)
30
89
89057
89000
Q 2/3
Score 0
Dysprosium, Dy, was discovered in 1886. Its freezing point is 1400 C and its boiling point is 2600 C. If 2.0x10^3 joules of heat were added to heat 10.00 grams of Dy from its freezing point to its boiling points, what is it's specific heat? Write number part of answer only and use sig figs.
30
.17
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3 questions
Q.
Heated bricks or blocks of iron wer used long ago to warm beds. A 1490 g block of iron heated to 155 C would release how many joules of heat as it is cooled to 22 C? the specific heat of iron is 0.4494 J/g C. (number only, answer in kJ with correct sig figs)
1
30 sec
Q.
Dysprosium, Dy, was discovered in 1886. Its freezing point is 1400 C and its boiling point is 2600 C. If 2.0x10^3 joules of heat were added to heat 10.00 grams of Dy from its freezing point to its boiling points, what is it's specific heat? Write number part of answer only and use sig figs.
2
30 sec
Q.
If a piece of silver, with a specific heat capacity of 0.2165 J/g K, mass of 14.16 g , and at a starting temperature of 133.5 C, is dropped into 250.0 g of water at 17.20 C, what will be the final temperature of the system? Round to THREE sig figs.
