Web Analytics
sbiba8nan3atdiv
Answered

Problem 1: Conditions for an experimental chemistry reaction require a temperature of 298 K. The temperature in the lab is 55°F. Which of the following must you do to meet the requirements? (°F= 9/5 (K - 273) + 32)

Aincrease the room temperature by 22°F
Bdecrease the room temperature by 12°C
Cdecrease the room temperature by 33°F
Dincrease the room temperature by 18 K 2. Jim, Jane, Ann, and Bill measure an object’s length, density, mass, and volume, respectively. Which student’s measurement might be in liters?

ABill’s

BJim’s

CJane’s

DAnn’s

Verified Answer :

Erudite1

The correct answer for question 1 is B. To arrive at this answer, use the equation given to convert 55F temperature to Kelvin. The answer will be 285.9K. If you subtract 285 from 298 the answer will be 12.
The correct answer for question 2 is A. This is because the unit of volume is liter.

Nirina7

1)     Since 1°F= 9/5 (K - 273) + 32) after the
calculus we find 1°F = 255.9 K

The
answer is A. increase the room temperature by 22°F, because 55° F + 22° F = 77°
and  77° F = 298.1K,

2)     The answer is A: Bill’s. Bill has measured the object’s volume, and the unit of volume is  the liter




Related Questions