Answer:
P2 = 128,205 pascal.
Explanation:
<u>Given the following data;</u>
Original Pressure, P1 = 100,000 pascals
Original Temperature, T1 = 273K
New Temperature, T2 = 350K
To find new pressure P2, we would use Gay Lussac' law. 
<em>Gay Lussac's law states that when the volume of an ideal gas is kept constant, the pressure of the gas is directly proportional to the absolute temperature of the gas. </em>
Mathematically, Gay Lussac's law is given by;

Where;
- T represents temperature. 
- K is the constant of proportionality. 
 
 
<em>Making P2 as the subject formula, we have;</em>
 
 
Substituting into the equation, we have;


P2 = 128205.13 ≈ 128205 pascal. 
<em>Therefore, the pressure inside the hot water bottle is 128,205 pascal. </em>