Match those forms to the appropriate definition Calorimetry Specific Heat Hess\'

Question

Match those forms to the appropriate definition Calorimetry Specific Heat Hess's Law Exothermic Endothermic A Heat flow out of a reaction B Heat flow into a reaction C The heat flow in a reaction that is the sum of 2 other reactions is equal to the sum of the heat flows in those 2 reactions D Ability of a substance to absorb heat E. Study of heat flow A piece of metal weighing 10.0 g is raised in temperature tom250 degree C to 765 degree C Its found that it absorbed 476 calories of heat in the process. The specific heat constant for the metal is K (4 decimal places) Based up on the table shown below, the identity of the piece of metal is (give the atomic symbol)

Explanation / Answer

Q1.

Calorimetry - E

Specific heat - D

Hess's law - C

Exothermic - A

Endothermic - B

Q2.

m = 10 g

s (specific heat) = ?

t = t2-t1 = 76.5-25.0 = 51.5 degree Celsius

q = 47.6 Cal

q = mst

s = q / mt = 47.6 cal / (10g x 51.5 C)

s = 0.0924 cal/g C

So the metal is Cu (Copper)

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