Question

L) Hone of the above 13) Consider the following specific heats of metals. 13) Metal Aluminum Copper Gold Iron Silver Specific Heat I/g.°C) 0.903 0.385 0.128 0.449 0.235 If the same amount of heat is added to 50.0 g samples of each of the metals, which are all at the same temperature, which metal will reach the highest temperature? A) iron B) copper C) gold D) silver E) aluminum 14) In calculating the relationship between the amount of heat added to a substance and the 14) corresponding temperature change, the specific heat capacity is usually represented by which symbol? A) m Β) ΔΤ C) K D) C E) q

Answer 1

13. Amount of heat added(q) = m* c* $\Delta$ T

Where C is the specific heat,

Delta T = change in temperature

And m = mass of metal

Now, same amount of heat is added to same of mass of all the metals whose initial temperature is same

temperature change depends on specific heat

Specific heat is the heat required to change the temperature of 1g of substance by 1^oC

i.e. lower is the C value lower is the more temperature is increased.

From given values, Gold has lower C value

Thus, Gold has highest temperature.

Option (c)

14. m= mass

$\Delta$ T = temperature

K = units of temperature = Kelvin

q = heat change

C= specific heat capacity

Thus, option D is correct