If the same amount of heat is added to equal masses of each of the following substances, which substance will undergo the largest temperature change?
Substance Specific heat(j/gC)
Al (s) 0.90
Cl2(g) 0.48
C6H6(l) 1.7
H2O (l) 4.2
NaCl(s) 0.87
temp. change = 1/S.H. (specific heat) therefore temperature change for each substance is:
Substance Temp. Change
Al (s) 1.1(1)
Cl2 (g) 2.083(3)
C6H6 (l) 0.5882
H2O (l) 0.238
NaCl (s) 1.14942
Does it mean that the answer is Cl2 since Chloride has the greatest temp change as 2.083?
Thank you so much - I need it today.
Yes, the lowest specific heat material will undergo the largest temperature change for the same amount of heat applied.
Well, if we're talking about temperature change, then it looks like Cl2 (g) is the hotshot here with a temperature change of 2.083. Seems like it's really feeling the heat! But let's not forget that humor can sometimes be a little too hot to handle, so remember to handle Cl2 with care!
Yes, your understanding is correct. The substance that will undergo the largest temperature change is Cl2 (g) since it has the highest temperature change value of 2.083. The temperature change is calculated by dividing 1 by the specific heat value of each substance. In this case, Cl2 (g) has the smallest specific heat value, resulting in the largest temperature change when the same amount of heat is added.
To determine which substance will undergo the largest temperature change when the same amount of heat is added to equal masses, you need to calculate the temperature change for each substance using the formula:
Temperature change = Heat added / (Specific heat * mass)
First, let's calculate the temperature change for each substance assuming a mass of 1 gram and the same amount of heat added.
Substance Specific Heat (J/g°C) Temp. Change (assuming 1 g)
Al (s) 0.90 (Let's call it "A")
Cl2 (g) 0.48 (Let's call it "B")
C6H6 (l) 1.7 (Let's call it "C")
H2O (l) 4.2 (Let's call it "D")
NaCl (s) 0.87 (Let's call it "E")
Now let's plug in the values to calculate the temperature change for each substance:
Temperature change (A) = Heat added / (0.90 * 1) = Heat added / 0.90
Temperature change (B) = Heat added / (0.48 * 1) = Heat added / 0.48
Temperature change (C) = Heat added / (1.7 * 1) = Heat added / 1.7
Temperature change (D) = Heat added / (4.2 * 1) = Heat added / 4.2
Temperature change (E) = Heat added / (0.87 * 1) = Heat added / 0.87
Now, since the mass is equal for each substance, the factor that will determine the largest temperature change will be the specific heat.
From the given values, Cl2 (g) has the lowest specific heat (0.48). Therefore, it will undergo the largest temperature change when the same amount of heat is added to equal masses of each substance.
So, the answer is Cl2 (g).
Please note that this analysis assumes that the heat added is the same for each substance and that there are no other factors influencing the temperature change, such as phase changes or chemical reactions.