The temperature of mixture of equal quantities of water at 90°C and water at 60°C when added together is …………………. 

Monjur Alahi

The temperature of mixture of equal quantities of water at 90°C and water at 60°C when added together is …………………. 

A) 60° C

B) 70° C 

C) more than 90° C 

D) 75° C


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Correct option is  D) 75° C

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
Two quantities of 5 and 12 unit when added gives a quantity 13 unit. This quantity is 

Correct option is: (C) linear momentum

2 Answers 4 views
175 litres of a solution contains `88%` of acid and the rest water. How many liters of water must be added such that the resulting mixture contains `2

Correct Answer - 25 litres

2 Answers 1 views
During 1991-2001 there were 67 million people added in the urban population, 40 million were added due to natural growth.

Correct option is B) 60%

2 Answers 1 views
A mixture has 18 g water and 414 g ethanol. What are the mole fractions of water and ethanol?

Given :  Mass of water = 18 g,  Mass of ethanol = 414 g To find :  Mole fractions of water and ethanol Formulae : Mole fractions of A = \(\frac{n_A}{n_A+n_B}\)  Mole fractions of B = \(\frac{n_B}{n_A+n_B}\)   Calculation : Number of...

2 Answers 1 views
The temperature (T) of two samples of the same substance with masses m1 and m2 and temperatures T1 and T2 when added together is

 B)  \(\cfrac{m_1T_1+m_2T_2}{m_1+m_2}\)

2 Answers 1 views
The final temperature of a mixture of 100g of water at 30°C temperature and 100g of water at 60°C temperature is ……………………… 

Correct option is  A) 45° C

2 Answers 2 views
When ‘m’ g of ice is added to ‘M’ g of water at 20 °C, state the conditions for m and M for which i) temperature of the mixture remains 0° C.

The heat lost by water in going from 20 °C to 0°C, Q1 = Msw ∆T = \(\frac{M}{1000}\) × 4.2 × 103 × (20) = 84M J Now, heat required to convert m g of ice into water...

2 Answers 1 views
When the components of the mixture formed are uniformly distributed through out it there it is called …………….. mixture. 

A) homogeneous

2 Answers 1 views
When the components of the mixture formed are not distributed uniformly throughout it, then the mixture is called ……………. mixture. 

B) heterogeneous

2 Answers 1 views
Equimolar mixture of two gases \( A_{2} \) and \( B_{2} \) is taken in a rigid vessel at temperature \( 300 K \). The gases reacts according to given equations : \[ \begin{array}{ll} A_{2}(g) \rightleftharpoons 2 A(g) & K_{P_{1}}=? \\ B_{2}(g) \rightleftharpoons & K_{P_{2}}=? \\ A_{2}(g)+B_{2}(g) & \rightleftharpoons 2 A B(g) & K_{P_{3}}=2 \end{array} \] If the initial pressure in the container was 2 atm and final pressure developed at equilibrium is \( 2.75 atm \). in which equilibrium partial pressure of gas \( A B \) was \( 0.5 atm \), calculate the ratio of \( \frac{ K _{ p _{2}}}{ K _{ p _{1}}} \). [Given : Degree of dissociation of \( B_{2} \) is greateı than \( A _{2} \) ].

this is the solution!!!! 

2 Answers 1 views
X