<span>a) movement of heat through space </span>
Answer:
Change in temperature = 74
Explanation:
The initial Temperature of the chicken is given as 0° C. Then the question states that the chicken is added to sous-vide cooker. And the final equilibrium temperature after cooking is given as 74°C. The equilibrium temperature means that the temperature of each component in the system, such as cooker and chicken is same, which is 74°C. So, we have:
Initial Temperature = 0
Final temperature = 74
Therefore, the change in temperature during cooking will be:
Change in Temperature = Final Temperature - Initial temperature
Change in Temperature = 74 - 0
<u>Change in temperature = 74</u>
Answer: The heat required to melt 25.0 g of ice at
is 8350 Joules
Explanation:
Heat of Fusion tells us how much energy is needed to convert 1g of a solid to a liquid at the same temperature.
Q = Heat absorbed = ?
m = mass of ice = 25.0 g
L = Latent heat of fusion of ice = 334 J/g
Putting in the values, we get:
Thus heat required to melt 25.0 g of ice at
is 8350 Joules
Answer:
To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.