Time + temperature - practice problems - page 2 of 4
Number of problems found: 78
- Calculating 82316
From the formula for calculating thermal energy Q=m*c*t, express t and calculate by how many °C 2kg of water must be heated to increase its energy by 126kJ - Temperature 81892
By how much °C will the temperature of an iron key weighing 0.004 t change if it receives 360,000 J of heat? ( c of iron is 450 J/kg.°C ) - Surroundings 81843
A copper cylinder weighing 15 kg transferred 114.9 kJ of heat to the surroundings during cooling. By how many degrees Celsius did it cool down? - Temperature 80864
You have water at a temperature of 10°C and boiling water at a temperature of 100°C. How do you prepare 9 liters of water at a temperature of 30°C?
- Effectiveness 80711
When testing the effectiveness of an electric cooker with data of 220 V, 1200 W, 1 kg of water at a temperature of 15 degrees Celsius was boiled for 8.5 minutes. Calculate the stove efficiency corresponding to these data - Consider 6
Consider the following word problem: The temperature readings for 20 days at 1 AM at a local ski resort were recorded as follows: 9° 27° −4° 1° 5° 14° 6° 28° −2° 16° 30° 4° 20° 30° −5° 15° −7° 25° −1° 5° What was the average of the recorded temperatures f - A chemist
A chemist recorded the change in temperature of a cooling liquid as −25.5° over a 1.5-minute period. The temperature fell at a constant rate. What was the rate of change in temperature? Enter your answer in the box. °F per minute - The temperature 36
The temperature over the course of a day was being monitored. In the morning, the temperature was −3°F. In the middle of the day, the temperature rose to 12°F. After dark, the temperature dropped again to −6°F. What was the average temperature for the day - The temperature 35
The temperature was -8 degrees at 10:00 in the morning. If the temperature rises 3 degrees per hour, what will the temperature be at 2:00 in the afternoon?
- Estimate linear fx
Which of the following is the best estimate for the temperature at 11 PM if the temperature continues to drop at the same rate? time; temperature °C 3 PM; 32 6 PM; 30 12 PM; 20 - Water 63
Boiler heated water at the rate of 6°c per minute for 14 minutes. It then cooled at the rate of 8°c per minute. What would be its temperature after 24 minutes if its original temperature was 40°c? - Yesterday 6
Yesterday it was 24°C, and today it is 28°C. By how many degrees has the temperature increased? - The temperature 32
The temperature in a place in Antarctica at noon is 5°Celsius, and every hour, it drops 4 °Celsius. Express this relationship using one equation and represent it graphically. - Temperature 72104
Jaroslav had a temperature of 36.8 °C in the morning. In the afternoon, it had a temperature of 38.4 °C. How many °C did Jaroslav's temperature rise?
- The temperature 31
The temperature last night was -11°C, and at noon today, it was 3°C. What is the difference between the temperatures? - At 5:00
At 5:00 AM, the room temperature was 20°C. After six hours, the reading was 28°C. The temperature rose to how many degrees? What was the average change in temperature per hour? - On Tuesday 2
On Tuesday, the temperature at 9 a.m. at Camden's house was -4°Fahrenheit. By 4 p.m., the temperature at his house was 8°Fahrenheit. Which statement about the change in temperature from 9 a.m. to 4 p.m. at Camden's house is true? Is house true? A. The tem - Minus temperature comparing
At noon, the temperature was –25°F. At 8:00 PM, the temperature was –14°F. Did the temperature rise or fall? ... - The temperature 28
The temperature rose 14°C in 3 1/2 hours. At what rate, in degrees per hour, did the temperature rise?
Do you have homework that you need help solving? Ask a question, and we will try to solve it.