Question

a certain freezing process requires that room temperature be lowered from 50°c at the rate of 5°c every hour . what will be the room temperature 10 hours after process begins​

Answer 1

Answer:

-10°C

Step-by-step explanation:

Initial temperature = 40°C

Room temperature decreases at 5°C per hour

Temperature change in 1 hour = -5°C

Temperature change in 10 hours = -5 x 10°C

                                                       = -50°C

Room temperature after 10 hours = Initial temperature + Temp. change in 10                                                    

                                                                                                                     hours

                                                        = (40 + -50)°C

                                                        = -10°C

Answer 2

Answer:

Temperature after 10 hours=0 degrees

Step-by-step explanation:

Temperature lowered every one hour=5°

Time taken=10 hours

Temperature after 10 hours=(10×5)-current temperature

=50-50°

0°

Hope this helps!

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