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Use the following information: [[[[2H2(g) + O2(g) → 2H2O(l) ∆H = −572 kJ mol−1]]]] [[[[2H2(g) + O2(g) → 2H2O(g) ∆H = −484 kJ mol−1]]]] to calculate the enthalpy change for the process: H2O(g) → H2O(l)

Well the method I use for calculations in thermochemistry is a little different from the textbooks but is far easier to understand. 

I would approach this question by drawing out the chemical equat...

LB
Answered by Louis B. Chemistry tutor
8686 Views

Do you have any exam tips for Biology Paper 2?

So one thing I observed in my Biology class was that students would memorise every single piece of inforrmation about each biological process that was written on their 'comprehensive flashcards'. One thin...

LB
Answered by Louis B. Biology tutor
4136 Views

What is the difference between the first and second objectivity of Karl Barth's theology?

The first objectivity is God in His 'totally other' self. We will never reach or experience Him of our own volition - you will only know God because God makes himself known through the second obj...

ST
1973 Views

I'm struggling to get work experience in a hospital or GP, what should I do?

Firstly, don't panic! I never had any NHS work experience when applying and I still made it. Lots of unis don't stipulate a required number of hours to have spent shaddowing a doctor, or any at all for th...

SH
1579 Views

Solve these simultaneous equations, 2x+y=6 and 3y-x=11

First step is to choose between the three methods for solving simulataneous equations; elimination, substitution and eqaulity. In this case the best method is probably substitution, but personal preferenc...

EG
Answered by Edward G. Maths tutor
5112 Views

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