Hi,
Answer is 191.2.
800J = 191.2 cal
Hope this helps.
Answer:
Ozone layer protects from excessive amount of UV rays coming from the sun
Explanation:
Oxygen is converted into ozone by the following net balanced equation which requires UV light for initiation:
The process is extremely vital for human life. Let's think about the atmosphere. Ozone layer is also known as a protective layer, since it protects people from harmful ultraviolet radiation that is coming from the sun. In reality, we experience ultraviolet rays from the sun all the time, this is the reason why people get tanned (we wouldn't be able to achieve this with simply visible light). However, ozone layer controls the amount of the UV rays that reach Earth and decreases that number to the level where it becomes harmless to the people living on Earth.
Answer:
The answer would be 1.5 kJ.
Explanation:
When you use the equation q = m x c x ∆T you will be able to find the energy gained or lost. The data for the water in this case is just there to distract you so ignore it. :D
Answer:
Specific heat of water = 33.89 KJ
Explanation:
Given:
mass of water = 81 gram
Initial temperature = 0°C
Final temperature = 100°C
Specific heat of water = 4.184
Find:
Required heat Q
Computation:
Q = Mass x Specific heat of water x (Final temperature - Initial temperature)
Q = (81)(4.184)(100-0)
Q = 33,890.4
Specific heat of water = 33.89 KJ