The correct answer is Hot water increases the collision rate of molecules, causing the reaction to occur faster.
Explanation:
Temperature is directly related to the kinetic energy or movement of molecules in a substance. In this context, a higher temperature leads to more kinetic energy or more collision between molecules. At the same time, a chemical reaction involves molecules of two or more substances colliding and creating bonds to form new substances. This implies an increase in temperature means molecules colliding faster, new substances forming in a shorter time, and therefore a faster chemical reaction. According to this, the first answer is correct.
Answer:
20.49
Explanation:
number of mole equal mass/molar mass and the number of mol is 0.17 and the molar mass is 12 then you substitute and solve.
The number of liters of H2 that would be formed at 600 mmhg and 13 c if 26.5 g zinc was allowed to react is calculated as follows
find the moles of Zn reacted
that is 26.5 g / 56.39 g/mol = 0.4699 moles
write the reaction Zn with an acid example HCl to produce H2
that is Zn + 2 HCl = ZnCl2 + H2
by use of mole ratio between Zn to H2 the moles of H2 = 0.4699 moles
By use of Ideal gas equation Volume of H2 =nRT/P
n= 0.499 moles
R= 62.364 L.mmhg/mol.K
T=13 +273=286 k
P= 600 mmhg
= (0.4699 mol x 62.364 L.mmhg/mol.k x286 k)/600 mm hg = 13.97 liters of H2