Need help solving these problemsHomework Set #$1-$ Problem #$1$

Given: A $\frac{1}{2}$ gallon of orange juice $($OJ$)$ was left out of the refrigerator all night. The OJ started at a uniform

$1\mathrm{.}6C$ from the refrigerator and the room temperature $($air and surroundings$)$ is at $22C.$

Find: a$)$ If by morning, the $OJ$ is at room temperature, calculate how much heat the orange juice has gained

over night? b$)$ If the heat gain occurred at a uniform rate over eight hours, what is the rate of heat

gain? c$)$ Do you think the heat gain occurred at a uniform rate?

Assume:

Analysis:

Homework Set #$1-$ Problem #$2$

Given: A computer chip dissipates $3$ W of power in an environment at $50C$ and has a surface area of $0\mathrm{.}08i{n}^2.$

Assume that the heat loss from the surface is uniform.

Find: a$)$ What is the heat flux on the surface of the chip $(\frac{W}{m^2})?$ b$)$ How much heat $($in kJ and kWhr and Btu$)$

is dissipated by this chip in one week of continuous operation? Please show the unit conversion to get

between these units and not simply give numerical answers.

Assume:

Analysis: