Answer:
B. 58°C
Explanation:
Hello,
In this case, the relationship among heat, mass, specific heat and temperature for water is mathematically by:

In such a way, solving for the final temperature
we obtain:

Therefore, we final temperature is computed as follows, considering that the involved heat is negative as it is lost for water:

Thereby, answer is B. 58°C
.
Regards.
The standard notation of 1.0070x10⁴ is 10070
To express enormous figures which are in standard notation like 1,300,000 or exceedingly minuscule quantities like 0.0000000000045, scientists use scientific notation. Scientific notation, also referred to as exponential form, is one of the earliest mathematical techniques. It is well regarded by practitioners. People use scientific notation to handle situations where numbers are too large or too small to be calculated easily. Scientists, engineers, and mathematicians all use this technique. where as standard notation is way writing numbers in normal decimal form. The scientific method id most convenient denoting numbers as the numbers will be either too big or too small.
To learn more about standard notation:
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Answer : The correct option is, (D)
Explanation : Given,
Concentration of
= 3 M
Concentration of
= 1 M
Concentration of
= 2 M
The given balanced equilibrium reaction is,
The expression for equilibrium constant for this reaction will be,
Now put all the given values in this expression, we get the value of
Therefore, the value of
for the given reaction is, 1.125