select the correct answer. harry uses a sling psychrometer to measure relative humidity near his school. the…

select the correct answer. harry uses a sling psychrometer to measure relative humidity near his school. the dry - bulb temperature reads 58°f, and the wet - bulb reads 45°f. at the same time, his cousin roberta uses her sling psychrometer to measure the relative humidity near her house. the dry - bulb temperature reads 58°f, and the wet - bulb reads 50°f. what can you conclude from the values? a. the relative humidity is higher at harrys school than at robertas house. b. the relative humidity is higher at robertas house than at harrys school. c. the relative humidity is the same at harrys school and robertas house. d. the relative humidity is 45% at harrys school and 50% at robertas house.

select the correct answer. harry uses a sling psychrometer to measure relative humidity near his school. the dry - bulb temperature reads 58°f, and the wet - bulb reads 45°f. at the same time, his cousin roberta uses her sling psychrometer to measure the relative humidity near her house. the dry - bulb temperature reads 58°f, and the wet - bulb reads 50°f. what can you conclude from the values? a. the relative humidity is higher at harrys school than at robertas house. b. the relative humidity is higher at robertas house than at harrys school. c. the relative humidity is the same at harrys school and robertas house. d. the relative humidity is 45% at harrys school and 50% at robertas house.

Answer

Explanation:

Step1: Understand relative - humidity principle

Relative humidity is related to the difference between dry - bulb and wet - bulb temperatures. A smaller difference indicates higher relative humidity.

Step2: Calculate the temperature difference for Harry

For Harry, the dry - bulb temperature ($T_d$) is $58^{\circ}F$ and the wet - bulb temperature ($T_w$) is $45^{\circ}F$. The temperature difference $\Delta T_1=T_d - T_w=58 - 45 = 13^{\circ}F$.

Step3: Calculate the temperature difference for Roberta

For Roberta, the dry - bulb temperature ($T_d$) is $58^{\circ}F$ and the wet - bulb temperature ($T_w$) is $50^{\circ}F$. The temperature difference $\Delta T_2=T_d - T_w=58 - 50 = 8^{\circ}F$.

Step4: Compare the differences

Since $\Delta T_2(8^{\circ}F)<\Delta T_1(13^{\circ}F)$, the relative humidity is higher at Roberta's house.

Answer:

B. The relative humidity is higher at Roberta's house than at Harry's school.