The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance gain energy during a change of state
2 answers:
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Answer:
Mass, m = 105.58 g
Explanation:
We have,
Heat required in aluminium to change the temperature from 68°C to 110°C. It is required to find the mass of aluminium.
Concept used : Specific heat capacity
Solution,
The heat required to raise the temperature is given by :
c is specific heat capacity, for Aluminium, c = 0.902 J/g-°C
So, the mass of aluminium is 105.58 grams.
Answer:
The vertical distance between these two points is 12.28 cm.
Explanation:
Given that,
Speed of water = 1.23 m/s
Diameter at lower point d'= 0.787 d
We need to calculate the speed of water
Using continuity equation
Put the value into the formula
We need to calculate the vertical distance h between these two points
Using Bernoulli theorem
Here, P₁ = P₂ = atmosphere pressure is same because both end is open
Hence, The vertical distance between these two points is 12.28 cm.