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grin007 [14]
3 years ago
5

Jill said that when you are standing in front of a fire you are warm because you release the coolness of your body to the heat o

f the fire.
Greg said that when you are standing in front of a freezer with the door open you feel cool because you are releasing your heat into the freezer.
Who has made the accurate statement regarding heat transfer
Chemistry
2 answers:
Andrej [43]3 years ago
6 0

Answer: Greg has made the accurate statement

Explanation: Heat transfers from a body with higher temperature to a body with lower temperature, this is a gradient of temperature and is the cause of heat transfer. In fact, cool is just the absents of heat or is just the sensation of a body with low temperature than other.

tatiyna3 years ago
3 0
Greg is accurate. Heat moves from areas of high temperature to low temperature via radiation, conduction and convection.
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Answer:

a)M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88 g/mol

b) if 0.100g is used instead of 0.200g

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Explanation:

0.2000 gHZ gives  100ml acid solution

33.5 ml of 0.1025 M NaOH  is required to prepare it

the moles = mass / molar mass

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if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

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